[Expert Solution]: A 32-year-old woman, G1P0, at 27 weeks…

A 32-year-old woman, G1P0, at 27 weeks estimated gestational age presents for her first prenatal care appointment. She recently immigrated to the US and did not receive any prenatal care in her country, Vital signs include blood pressure 130/70 mm Hg, pulse 85/min, and respirations 16/min. Her body mass index (BMI) is 38.3 kg/m?. Physical examination is unremarkable except for normal pregnancy changes. Fetal ultrasound is performed and reveals fetal macrosomia. Which one of the following diagnostic tests is most likely to reveal the cause of this fetal abnormality?O A. Serum insulin B. C-peptide c. Oral glucose tolerance testO D. Glycated hemoglobin E. Leptin